Boring a tapered hole

[Pete O]

I think I need one of these.
https://www.youtube.com/watch?v=JHk9tukD7qE&t=62s

[f350ca]

Is that thing mechanical or magic.

[Pete O]

A stunning bit of kit, the taper business is a copy of the 'TREE' taper boring head but I can't find any image or reference to the radius mechanism elsewhere, might be an original idea.

[SteveG]

That's an awesome bit of gear.

If you're still looking to make the taper, one suggestion I found online that hasn't been posted here is to fill the hole in slightly with weld, clean up a bit then heat it up red hot or better and use a male taper (ie old ball joint with a good condition taper) and FBH to forge the hole back to tapered.

Steve

[Pete O]

That's an interesting suggestion Steve, at least I could get the taper to match that way!

[Vinny]

FBH, does that have something to do with a Big Hammer? If so, I always called it a BFH. Rolls off the tongue easier.

[kwoodhands]

(12-23-2017, 05:06 AM)Pete O Wrote: I'm still plodding away on my old Ford tractor, there's now barely a component that hasn't been dismantled and overhauled. One component that is going to need overhaul, as a replacement is not readily available, is this steering arm with the flogged-out hole where the tie rod end goes.

I figure I can weld the hole up and start again, but how to go about renewing the tapered hole? Can you buy tapered endmills? A tapered reamer? Make a tapered D-bit?
I probably won't get to this for a while as there is still plenty else to do, but thought I'd get the ball rolling with this question in case I need to order a tool.

Measure the taper on the tie rod end. If it is a match for a Morse taper then reamers are available.
If it is an odd taper than make a reamer. Turn the taper on apiece of scrap steel and then mill two flutes opposite each other.. Grind a bevel on the edge,  about 10° on two pieces of HSS  1/8" thick and about  5/8" wide. If you have a jointer blade you can use it instead, cut it in half with a Dremel of similar tool. Press fit or Loctite it in the slots you milled. Now you have a reamer.
I would try reaming without power first. I think hand reaming in a drill press will work.

mike

[SteveG]

(01-03-2018, 11:22 PM)Vinny Wrote: FBH, does that have something to do with a Big Hammer?  If so, I always called it a BFH.  Rolls off the tongue easier.

Yes, there is a Big Hammer involved ;)
Guess its whichever way you're used to....

Steve

[Dr Stan]

(01-03-2018, 06:45 PM)Pete O Wrote: I think I need one of these.
https://www.youtube.com/watch?v=JHk9tukD7qE&t=62s

That is an amazing piece of engineering and craftsmanship.

[pepi]

Throwing this against the wall.

How about a Heim Joint, no taper required.